A first dataset from one or more databases and a second dataset from the one or more databases may be identified. The first dataset may contain first data while the second dataset may contain second data. A first relationship measure may be computed for the first dataset, where the first relationship measure is configured to represent the first data in a first condensed format. A second relationship measure may be computed for the second dataset, where the second relationship measure is configured to represent the second data in a second condensed format. A join key may be computed using the first relationship measure and the second relationship measure. The join key may represent a correspondence area between the first dataset and the second dataset. An interactive user interface element may be configured to display a graphical depiction of the correspondence area between the first dataset and the second dataset.